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WO2017067550A1 - Procédé de fabrication d'un paquet de lamelles d'un embrayage à friction à bain d'huile et embrayage à friction - Google Patents

Procédé de fabrication d'un paquet de lamelles d'un embrayage à friction à bain d'huile et embrayage à friction Download PDF

Info

Publication number
WO2017067550A1
WO2017067550A1 PCT/DE2016/200466 DE2016200466W WO2017067550A1 WO 2017067550 A1 WO2017067550 A1 WO 2017067550A1 DE 2016200466 W DE2016200466 W DE 2016200466W WO 2017067550 A1 WO2017067550 A1 WO 2017067550A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
friction
fatty acids
lamellae
wet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2016/200466
Other languages
German (de)
English (en)
Inventor
Stefan Steinmetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN201680058757.3A priority Critical patent/CN108138861B/zh
Priority to DE112016004826.2T priority patent/DE112016004826A5/de
Priority to JP2018520552A priority patent/JP6820920B2/ja
Priority to US15/766,420 priority patent/US20180298956A1/en
Publication of WO2017067550A1 publication Critical patent/WO2017067550A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/72—Features relating to cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/74—Features relating to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/009—Linings attached to both sides of a central support element, e.g. a carrier plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F16D2069/0466—Bonding chemical, e.g. using adhesives, vulcanising
    • F16D2069/0475—Bonding chemical, e.g. using adhesives, vulcanising comprising thermal treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0056—Elastomers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0078—Materials; Production methods therefor laminated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0038—Surface treatment
    • F16D2250/0046—Coating

Definitions

  • the invention relates to a method for producing a disk set and a disk set for a wet-operated friction clutch having a plurality of layered, under compressive load in the layer direction a frictionally engaging blades, namely a friction lining carrying friction plates on both sides and steel plates, wherein the disk set wet under the presence of an operating fluid is operated.
  • wet-operated friction clutches are known for many applications, for example in automatic transmissions, dual clutches, differentials, pulleys and the like.
  • DE 10 2012 220 892 A1 shows, for example, a wet-operated double clutch with two friction clutches, each with a disk set with input side and output side alternately layered lamellae, which form a frictional engagement between the input side and output side under pressure by pressing the disk set.
  • the input-side and output-side slats slip, so that the frictional engagement is canceled and the friction clutch is open.
  • the type of slats in friction plates and steel plates is divided.
  • the friction plates wear friction linings on both sides, for example of fibrous material such as paper, including additives for reinforcement, for example aramid fibers.
  • the friction plates form a friction surface with steel plates, which have on both sides a Jacobreib Structure to the friction surfaces of the friction plates.
  • the corresponding alternately stratified friction and steel blades len formed disk set is used in the closed state of the transmission of the torque applied to the friction clutch.
  • the torque is transmitted via an operating fluid located between the disks, for example oil.
  • the film thickness of the operating fluid thereby determines the coefficient of friction and the comfort behavior of the friction clutch.
  • additives are added to the operating fluid, for example in US 2014/0087982 A1.
  • the object of the invention is the development of a laminated core with improved frictional properties, which are at least partially independent of the operating fluid used.
  • the dynamic and / or static coefficient of friction of the disk set is to be increased.
  • the Reibwertgradient should be optimized.
  • the coefficient of friction and / or coefficient of friction gradient should be improved over the service life and / or under high loads.
  • the proposed method is used to produce a disk set for a wet-operated friction clutch with a plurality of layered, under compressive load in the layer direction a frictionally engaging blades.
  • the lamellae are formed for example from a friction lining bearing on both sides friction plates and steel plates, which are preferably stacked alternately in the disk set.
  • Friction blades can be arranged on the output or input side in the disk set.
  • Steel plates can be arranged on the input or output side in the plate pack.
  • the disk pack gets wet under presence operated a Bethebsfluids.
  • the operating fluid may be oil, for example ATM (automatic transmission fluid).
  • the operating fluid may be admixed with additives to improve the frictional properties of the friction clutch.
  • the additives may be at least portions of the at least one additive applied to the laminations.
  • the proposed disk set at least a portion of the slats is treated prior to commissioning of the disk set with at least one additive, wherein the at least one additive of a polar, associated with the fins rest and a non-polar, operating fluid binding rest is formed.
  • the treatment of the slats can be made prior to assembly of the disk set, so that the frictional surfaces of the slats can be treated specifically.
  • the at least one additive can be applied to the surface of the slats, for example by means of a spraying process, Aufrollverfah- rens, dipping method or the like.
  • the at least one additive may already be present during the production of the paper covering, for example from fibers such as cellulose fibers, aramid fibers, fillers and resins.
  • the at least one additive may be deposited in the friction linings during or after production of the friction lining by means of microcapsules, whereby activation of the at least one additive at a later time after landfilling is set, for example by destruction or dissolution of the microcapsules, for example by mechanical stress or elevated temperature becomes.
  • At least the surface such as the counter-friction surface of the steel lamellae, can be activated before the application of the at least one additive in order to achieve a better adhesion of the at least one additive.
  • the surface roughness such as surface roughness
  • the surface can be pretreated, for example by plasma treatment, laser treatment or the like.
  • the surface may be chemically activated, for example by means of an acid pickling process, alkali pickling process or the like.
  • these can be subjected to a temperature treatment before, during and / or after the application of the at least one additive to a friction and / or steel lamella.
  • a temperature program with low temperatures for example room temperature
  • the temperature can be increased, for example, for conditioning, bond formation and the like, for example, on or above the operating temperature of the disk pack.
  • the at least one additive can be applied in liquid form or as a solution to the lamellae. If the at least one additive is applied in solution, the solvent can be carried out by evaporating off the solvent under room conditions, at elevated temperature and / or under reduced pressure.
  • the at least one additive can be used from a single chemical compound or as an additive mixture of several, effective as an additive chemical compounds. At least one additive also includes additions of additives, for example for stabilizing the at least one additive.
  • the disk pack is for a wet friction clutch, for example, a simple, provided between the engine and transmission friction clutch, a dual clutch with two friction clutches for a dual clutch transmission, a clutch in an automatic transmission, a synchronizer clutch between the axles of a four-wheel drive vehicle, a differential clutch, a Lockup clutch, a hybrid clutch between the engine and electric machine or the like provided.
  • the disk pack has a plurality of layered disks which form a frictional engagement under pressure in the layer direction, namely friction disks and steel disks bearing a friction lining bearing on both sides. At least some of the lamellae are treated with at least one additive in the new state of the lamella packet, wherein the at least one additive of a polar, associated with the lamella remainder and a non-polar, operating fluid-binding radical is formed.
  • the polar moiety of the at least one additive may contain a functional ether, ester, amine, amide and / or thiol group.
  • the nonpolar radical of the at least one additive may have an organic alkyl and / or aryl radical. For example may be provided long, optionally branched organic radicals which form, for example, non-polar interactions with the operating fluid.
  • the at least one additive may comprise at least portions of one of the following substance classes:
  • Fatty acids in particular long-chain fatty acids, in particular fatty acids having a branched organic radical
  • Sulfur-containing fatty acids in particular thiols, or thioethers and / or
  • the surface of the friction plate and / or the steel plate is already occupied when new by a suitable selection of additives.
  • the respective surfaces can be conditioned with the functional properties of the additive or additives by means of adsorption or absorption.
  • the additives have the task of attaching themselves to the respective friction lining surface of the friction disks or to the steel disk surface with the polar part of the molecule and forming a kind of "molecular brush" on the nonpolar long-chain part, which has the function even at low thicknesses of the operating fluid, such as oil film thickness, a solid avoid contact between the slats.
  • a branch of the non-polar remainder may interact with the operating fluid and bind a larger amount of operating fluid, for example van der Waals forces, through the more branched "molecular brush.”
  • This can increase the thickness of the working film and thus the friction coefficient of the fin stack
  • the additives can be applied to the carrier lamella by spraying, roller coating or dipping or introduced into the material of the friction linings after the adhesive process of the friction linings
  • the surface of the friction lamella, ie its lining surface can be coated, for example by means of Temperature treatment with respect to their capacity for the additive or additives are changed.
  • the additives can also be applied or incorporated onto the steel lamella by the mentioned methods.
  • activation of the steel disk surface for example by an acid pickling process, may be provided prior to wetting with additives.
  • the classes of substances consist of a polar and a non-polar part, whereby the polar part can take over the "docking function" on the friction and / or steel disc surface.
  • the long-chain non-polar part can be a "molecular brush” and the interaction with the Operating fluid of the disk set or a transmission oil or the like cause.
  • the non-polar in itself so not provided for the connection to the surfaces of the slats rest, for example in the form of a long linear or branched organic residue having a higher polar property by incorporation of ether, amine, amide and / or mercaptan functional group.
  • the additives can be applied in liquid form and a suitable solvent system on the lamellae.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un paquet de lamelles et un paquet de lamelles pour un embrayage à friction à bain d'huile, comportant une pluralité de lamelles empilées, formant une liaison par friction sous l'effet de la pression dans le sens d'empilement, plus précisément des lamelles de friction présentant un revêtement de friction sur les deux côtés, et des lamelles d'acier, le paquet de lamelles fonctionnant en présence d'un milieu de travail. Pour améliorer les propriétés de friction du paquet de lamelles, au moins une partie des lamelles est traitée avec au moins un additif avant la mise en service du paquet de lamelles, l'au moins un additif étant composé d'un reste polaire combiné aux lamelles et d'un reste apolaire liant le fluide de travail.
PCT/DE2016/200466 2015-10-21 2016-10-07 Procédé de fabrication d'un paquet de lamelles d'un embrayage à friction à bain d'huile et embrayage à friction Ceased WO2017067550A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201680058757.3A CN108138861B (zh) 2015-10-21 2016-10-07 用于制造湿式摩擦离合器的离合器片组的方法和摩擦离合器
DE112016004826.2T DE112016004826A5 (de) 2015-10-21 2016-10-07 Verfahren zur Herstellung eines Lamellenpakets einer nass betriebenen Reibungskupplung und Reibungskupplung
JP2018520552A JP6820920B2 (ja) 2015-10-21 2016-10-07 湿式作動摩擦クラッチ用ディスクパックの製造方法および摩擦クラッチ
US15/766,420 US20180298956A1 (en) 2015-10-21 2016-10-07 Method for producing a lamella pack of a wet-operated friction clutch and friction clutch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015220463.4 2015-10-21
DE102015220463 2015-10-21

Publications (1)

Publication Number Publication Date
WO2017067550A1 true WO2017067550A1 (fr) 2017-04-27

Family

ID=57354044

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2016/200466 Ceased WO2017067550A1 (fr) 2015-10-21 2016-10-07 Procédé de fabrication d'un paquet de lamelles d'un embrayage à friction à bain d'huile et embrayage à friction

Country Status (5)

Country Link
US (1) US20180298956A1 (fr)
JP (1) JP6820920B2 (fr)
CN (1) CN108138861B (fr)
DE (2) DE112016004826A5 (fr)
WO (1) WO2017067550A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029686A (en) * 1990-07-20 1991-07-09 Borg-Warner Automotive, Inc. Clutch separator plates
EP1323942A1 (fr) * 2001-12-25 2003-07-02 Toyoda Koki Kabushiki Kaisha Disque d'embrayage, embrayage à friction et dispositif d'embrayage
EP2460896A1 (fr) * 2010-12-03 2012-06-06 Miba Frictec GmbH Procédé de fabrication d'un élément de friction
DE102012220892A1 (de) 2011-12-23 2013-06-27 Schaeffler Technologies AG & Co. KG Nasskupplung
US20140087982A1 (en) 2012-09-24 2014-03-27 Exxonmobil Research And Engineering Company Microencapsulation of lubricant additives

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JPH07253122A (ja) * 1994-03-15 1995-10-03 Dainatsukusu:Kk 摩擦板又はメィティングプレートの製造方法
JPH08183946A (ja) * 1994-12-29 1996-07-16 Sumitomo Electric Ind Ltd ブレーキ用摩擦材
DE19922583A1 (de) * 1998-05-18 2000-02-03 Fraunhofer Ges Forschung Reibungsbeanspruchtes Kunststoffbauteil
JP2008192977A (ja) * 2007-02-07 2008-08-21 Pjt Kk プラズマ処理済み金属メッシュを用いたプラズマ処理済み転写基材への印刷方法及びその印刷装置
JP5272396B2 (ja) * 2007-06-20 2013-08-28 日立化成株式会社 摩擦材組成物及びこれを用いた摩擦材
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FR2985796B1 (fr) * 2012-01-12 2014-01-03 Valeo Materiaux De Friction Procede de realisation d'une garniture de friction d'embrayage
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029686A (en) * 1990-07-20 1991-07-09 Borg-Warner Automotive, Inc. Clutch separator plates
EP1323942A1 (fr) * 2001-12-25 2003-07-02 Toyoda Koki Kabushiki Kaisha Disque d'embrayage, embrayage à friction et dispositif d'embrayage
EP2460896A1 (fr) * 2010-12-03 2012-06-06 Miba Frictec GmbH Procédé de fabrication d'un élément de friction
DE102012220892A1 (de) 2011-12-23 2013-06-27 Schaeffler Technologies AG & Co. KG Nasskupplung
US20140087982A1 (en) 2012-09-24 2014-03-27 Exxonmobil Research And Engineering Company Microencapsulation of lubricant additives

Also Published As

Publication number Publication date
CN108138861B (zh) 2021-02-02
JP6820920B2 (ja) 2021-01-27
DE102016219456A1 (de) 2017-04-27
JP2018537550A (ja) 2018-12-20
DE112016004826A5 (de) 2018-07-26
CN108138861A (zh) 2018-06-08
US20180298956A1 (en) 2018-10-18

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